test: remove require('buffer') on 6 fs test files

* test/parallel/test-fs-mkdtemp.js * test/parallel/test-fs-read-zero-length.js * test/parallel/test-fs-read.js * test/parallel/test-fs-whatwg-url.js * test/parallel/test-fs-write-string-coerce.js * test/parallel/test-fs-write.js PR-URL: #13845 Refs: #13836 Reviewed-By: James M Snell <[email protected]> Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: Benjamin Gruenbaum <[email protected]> Reviewed-By: Luigi Pinca <[email protected]> Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: Tobias Nießen <[email protected]> Reviewed-By: Alexey Orlenko <[email protected]> Reviewed-By: Michael Dawson <[email protected]> Reviewed-By: Vse Mozhet Byt <[email protected]>

Author: sallen450

test/parallel/test-fs-mkdtemp.js

@@ -4,7 +4,6 @@ const common = require('../common');
 constassert=require('assert');
 constfs=require('fs');
 constpath=require('path');
-constBuffer=require('buffer').Buffer;
 
 common.refreshTmpDir();
 

test/parallel/test-fs-read-zero-length.js

@@ -2,7 +2,6 @@
 constcommon=require('../common');
 constassert=require('assert');
 constpath=require('path');
-constBuffer=require('buffer').Buffer;
 constfs=require('fs');
 constfilepath=path.join(common.fixturesDir,'x.txt');
 constfd=fs.openSync(filepath,'r');

test/parallel/test-fs-read.js

@@ -23,7 +23,6 @@
 constcommon=require('../common');
 constassert=require('assert');
 constpath=require('path');
-constBuffer=require('buffer').Buffer;
 constfs=require('fs');
 constfilepath=path.join(common.fixturesDir,'x.txt');
 constfd=fs.openSync(filepath,'r');

test/parallel/test-fs-whatwg-url.js

@@ -6,7 +6,6 @@ const path = require('path');
 constfs=require('fs');
 constos=require('os');
 constURL=require('url').URL;
-constBuffer=require('buffer').Buffer;
 
 functionpathToFileURL(p){
 if(!path.isAbsolute(p))

test/parallel/test-fs-write-string-coerce.js

@@ -2,7 +2,6 @@
 constcommon=require('../common');
 constassert=require('assert');
 constpath=require('path');
-constBuffer=require('buffer').Buffer;
 constfs=require('fs');
 
 common.refreshTmpDir();

test/parallel/test-fs-write.js

@@ -23,7 +23,6 @@
 constcommon=require('../common');
 constassert=require('assert');
 constpath=require('path');
-constBuffer=require('buffer').Buffer;
 constfs=require('fs');
 constfn=path.join(common.tmpDir,'write.txt');
 constfn2=path.join(common.tmpDir,'write2.txt');